I've seen there is a new helpdesk software around called Vision Helpdesk, their website is http://www.thevisionworld.com, it seems to seamless integrate into whmcs. My question is now, has anyone tried it yet and how good is it, compared to the whmcs support module and kayako?

We are planning to switch to Vision Helpdesk soon, They have nice WHMCS integration also it allows per ticket billing integration with whmcs which makes it better option over kayako.

Another important thing is Vision Helpdesk Costing is economical

Vision helpdesk integrates into WHMCS.
- It allows satellite installations, so if you offer end-user support to your resellers, you can give them an install based off of your vision installation.

Personally, it's a lot cheaper than Kayako, and it'd be my choice.
Kayako may have more eye-candy, but Vision offers the same functionality at a fraction of the cost, and has a handy desktop app (free) as well.

We've looked at vision, it seems a very good product for the price, but functionality we were waiting for that they told us would be added in version 2.4 has still not been added and its now on version 2.6.

It does look like a good product. It would be very good for those offering end user support to their resellers. I cannot see the benefit over using the built in support in WHMCS unless this functionality is being used.

It seems like a good product, we may consider it in the future.

Indeed it looks pretty awesome, although I'm pretty happy with the built in WHMCS helpdesk.

My only gripe with it is Kayako integrations are much more easier compared to Vision.

LiveZilla does the same thing and is open source (Free) I have been using it on all of my website under one control panel.

Definitely looks interesting, we might use Vision in the future.

Liveperson is also a good option to have,,,

We considered it, but stuck with WHMCS for now. I see many hosts/businesses are starting to use it however. It seems to have allot of very nice features.

Their demo looks promising.
I always thought kayako is overpriced.
Using their good software, they want to create monopoly like whmcs.

It looks good but I think WHMCS will keep a big marketshare anyway.

WoW that is high I will surely stick with LiveZilla.